package ooday01;
//构造方法的演示
public class ConsDemo {
    public static void main(String[] args) {
        Student zs=new Student();
        Student ls=new Student("李四",35);
        Student ww=new Student("王五",55,"10086","001");
        zs.sayHi();
        ls.sayHi();
        ww.sayHi();
    }
}
